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From "lohit vijayarenu (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-2053) OutOfMemoryError : Java heap space errors in hadoop 0.14
Date Sat, 13 Oct 2007 18:35:50 GMT
OutOfMemoryError : Java heap space errors in hadoop 0.14
--------------------------------------------------------

                 Key: HADOOP-2053
                 URL: https://issues.apache.org/jira/browse/HADOOP-2053
             Project: Hadoop
          Issue Type: Bug
          Components: mapred
    Affects Versions: 0.14.1
            Reporter: lohit vijayarenu
             Fix For: 0.15.0


In recent hadoop 0.14 we are seeing few jobs where map taskf fail with java.lang.OutOfMemoryError:
Java heap space problem
These were the same jobs which used to work fine with 0.13

<stack>
task_200710112103_0001_m_000015_1: java.lang.OutOfMemoryError: Java heap space
	at java.util.Arrays.copyOf(Arrays.java:2786)
	at java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:94)
	at java.io.DataOutputStream.write(DataOutputStream.java:90)
	at org.apache.hadoop.io.Text.write(Text.java:243)
	at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.collect(MapTask.java:340)
</stack>

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